Plow



July 28. 1925.. 1,547,806

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UNITED ASTATES PATENT oFrlcE.

WILLIAM S. GRAHAM, OF CANTON, ILLINOIS, ASSIGNOR TO INTERNATIONAL HAR-VESTER COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION O F NEW JERSEY.

PLOW.

Application led Apri1 17, 1922. Serial No. 553,522.

To all lwko/m t may concern:

Be it known that I, WILLIAM S. GRAHAM, a citizen of the United States,residing at Canton, lin the county of Fulton and State of Illinois, haveinvented certain new and useful-Improvements in Flows, of which thefollowing is a full, clear, and exact specification.

Thisl invention relates to light tractor plows of the type for use inorchards and the primary object is to construct and arrange the elementsof the plowin such manner as to adapt it for work under ,overhanginglimbs of trees and close to the tree rows. With this end inview, theframe andY -fr'ont axle ofthe plow are of special and novel-form and thelift mechanism for the plow is so related thereto as to provide a narrowtread and ample range of movement for the axle cranks. Simple ad-rjusting means for the lifting mechanism is also provided and the entireorganization made such as to provide an orchard plow that willl notupset and that is easily controlled and adjusted and capable of beingoperated close4 to trees, The, novel features of the construction aremore fully set forth in the following specification and defined in theclaims.

Referring to the drawings-y 'i Fig. 1 is a plan view of a plow embodyingthe invention;l

Fig. 2 is a side view thereof;

Fig. 3 is a detail perspective view of the plow frame and axle; Y i

Fig. 4 is a detail sectional view on the line 4-4 of Fig. 3; y

Fig. 5 is a detail sidev view of the trip mechanism `for the liftingclutch;

Fig. 6 is a detail front view of the adjusting means for the lifting arm;V and Fig. 7 is a detail perspective view of the adjusting block forthe lifting arm. j

In the presentA embodiment of my invention the plow comprises a framecomposed of forward spaced members 1() andll which have their front endsbenttoward each other and rigidly connected by a flat hitch plate to theright or furrow side of the plow and yis'bracedI to the frame by amember 13. 4The frame member 11 is first bent inwardly as at 11"L andthen outwardly to form the beaml or support 11" for .the standard of thefront disk 14 and, to the part 11.l1 of the frame beam'll, athirdv framemember 15 is rigidly secured in amanner to form a continuation thereofextending to the rear end of number 10 with'which it lies in contact andto which it is 'secured4 by bolts or other fastenings at 16. Beyond therearend of memberlO, the member 15 is bent .outwardly parallel to theforward ,disk support 11b. and forms a support 15a for the standard ofthefsecond disk 17 and also for the bracket 18 for the rear furrowwheel. A brace 19 may be used; between the disk support 11b andymember`15 as vshown inf Figs. 1

and 3. The frame member 10 is raised or arched from itsvforward end totheV point .where it is joined to 'the rear frame -member 15, as shownin Figs. 2,;3 and 4, and the central portion of this arch has adepending loefllllg; bracket 20 fixed thereto. A121 second bearingbracket 21 `is fixed to and extends above the' opposite frame member 11vin alignment with the bracket 20 and in these brackets there isjournaled the straight transverse or body portion of the one piece ffaxle 22. This axle is formed with opposite offset cranked ends forcarrying the land and furrow wheels respectively. The land wheel crank23 extends forwardly and downwardly atA substantially a right angle tothe body of the axle and has its end bentinwardly within the frame toform `a spindle 23a for the land wheel 24'as well as a support orconnection for the lifting mechanismto be described. The furrow wheel`crank 25y is offset below theland wheelcrank andextends forwardly anddownward-ly at an obtuse angle to' thebody of the axle and has anoutwardly extending spindle 25"*'for the furrow wheelv 26. The effectivelength of thel furrowwheel crank is about half that of the landwheel'fcrank and the cranks are offset to-'a degree causing: the plow tostand substantially level lwhen plowingat an ordinary depthlas`illustrated in Fig. 2. It is preferable, thoughv not essential, toinclude powerfli'ftm'echanis'm in connection with the constructionembodyingmy invention and for this purpose there is rfixed on the innerend of the hub `ofthe 'land wheel 24 one member 27 of an intermittentclutch. This clutch is preferably ofthe double acting internal' ratchettype, the flange of member being formed with internalnotches. and

the cooperating intermittently actuated clutch member 28 which isjournaled on the end of spindle 23a having oppositely acting springpressed pawls .mounted on its inner face within .the'clutch part vor.housing 27 in position to normally engage the internal notches on itsliange. The clutch member 28 is formed with opposite control notches 28ain which parts of :theLpawl .mechanism are exposed and a spring pressedtrip 29 has a vroller 29a positioned to drop into the notches and engagethe pawl mechanism to throw out or disengage the members .of the clutch.The trip 29 is pivoted to the end of a forwardly projecting arm `3().clamped a guide 34 on the plow frame.

on' axle 22 and, a lever 31, also rpivoted -on arm 30, ha-s one endconnected lto the trip by link 32 and an actuating rod 33 .is connectedyto its other end and passes through As the specilic clutch mechanismemployed is .not part of the `present invention, the foregoingdescription will suce, as its manner of' operation is in general wellknown to those skilled in the art and it will be evident that each pullon operating rod 33 will withdraw roller 29:L from the notch vinV whichit is fitted causing theclutch to lock and member 28 to turn, the roller29L riding on .the .pe-

30 riphery of said member until it drops 'into the opposite notch anddisconnects the clutch after approximately a half revolution. The clutchmember 28 has eccentrically pivoted thereto a lifting arm or link 35which extends upwardly and has its upper CFI end bent at right anglesand pivoted in an adjusting block -36 which is' slidably connected `to4a standard V37 which in this instance is yformed as Aan 4arch fixed tothe frame member 11 and having` its inner branch or limb 'forming theguide for the adjustingblock 36 which has avertical .opening 36a forreceiving the inner branch of standard 87. Within standard there is-swiveled an adjusting screw 38 which is operated by means of a pivotedhandle 39 which may be dropped downwardly out of the way when not inuse. The adjusting block 86 has a vertical screw threaded opening 86h inwhich fthe screw 38 is received and a transverse opening 36Y in -which`.the upper bent end ofthe lifting -link 35 is pivoted. Thisconstruction just described provides a simple device for adjusting thedepth .of plowing as lit will be evident that operavtion of ythe screw38 will cause the 'plow frame to be raisedor loweredv relatively to itssupportinfr wheels to an extent .governed by length of screw 38, thethrow of the power lift remaining the same. :In order to provide forsimultaneous adjustment of the rear furrow wheel, an arm 40 `is clampedto Vthe axle 22 and a rearwardly extending connecting rod 41 has one endpivoted in kthe arm 40 and its rear end secured in a pivoted sleeve 42on one end of bellcrank lever 43 which is pivoted to the furrow .wheelbracket 18 and has its other end connected as by link 44 to the upperend `o f the standard 45 of the rear furrow wheel which is swiveled inthe usual manner in the bracket 18. With this construction the rearfurrow wheel will be raised and lowered in unison with the front wheelsand a substantially level lift is provided.

In connection `with this plow, .there y is .preferably employed thenovel form lof adjustable hitch described and claimed .inthe copendingapplication of J. R. Barker, v'Serial No. 559,090 filed May 6,v 1922which vconsists of a vbracket 46 slidably mounted ,on plate 12 andadjustable from -end i120, y,end thereof, and capable of being lockedthereto by means of the screw stud V47 which may be `manipulated by thepivoted handle48. The bracket 46 has `vertically spaced lugs 46a inwhich there is yjournaled a standard or -post 47 which has its ,upperend bent toward the furrow side of the plowftorforvma crank arm 47a.Aclevis 48" is secured lto kstandard 47 between the lugs 46a .and tothis clevis there is adjustably pivoted the rear endof a draft bar 49 bywhich the plow jis coupled to the tractor. The outer Aend of ward end ofa coupling rod 50 whiclrmay be formed of adjustable telescopic `sectionsas shown and which has :its rear send pivoted to van arm 51 fixed toltheupper end of the .rear `:furrow wheel standard `and exten-dini tlaterally therefrom toward `the landside ,of lthe plow. vYVith thisconstruction the tractor hitch may be moved from k,one side .to theother of the plow as necessitated by use of the plow near a row of treesand,as the bracket 46 is moved, the post 47 will be swung, owing` to itsconnection to bar 50, in a manner toangle the coupling bar 49 with-relationto the plow and away from the trees that the plow when raised.will `be tilted I,to

vsome degree toward the `furrow side further stabilizing it. The arched`.portion of frame member 10 permits vuse of the ylong land -wheel crankand positioning off the/land .wheel inside ofthe frame, ythe arch.allowing .the ,spindle 23a t0 xtravel upwardly fr suliicientextenttosecure the maximum necessary depth ofy plowing. Y

The construction above described exemplifies the preferred form of myinvention and variations therefrom may be made within the scope of thefollowing claims.

' I claim as my invention:

1. In a wheel plow, a frame comprising laterally spaced bars one ofwhich is arched, an axle journaled thereon and provided with a forwardlydirected crank positioned outside said arched bar and having an inwardlydirected spindle at its end extending under said bar, a wheel journaledon said spindle within the frame, and means for swinging said crank toraise and lower the frame.

2. In a wheel plow, a frame comprising laterally spaced bars one ofwhich is arched,

an axle j ournaled thereon and providedv with a forwardly directed crankpositioned outside said arched bar and having an inwardly directedspindle at its end extending under said bar, a wheel journaled on saidspindle within the frame, means for swinging said crank to raise andlower the frame comprising a lifting link connecting the inner end ofsaid spindle with a vertically adjustable element mounted on the frame.

3. In a wheeled plow, a frame comprising laterally spaced bars, the oneon the land side being arched, an axle journaled on said bars and havingforwardly extending land and furrow wheel cranks at opposite sides ofthe frame, an inwardly extending spindle on the land wheel crank, a landwheel journaled on said spindle within the frame, an outwardly extendingspindle on the other crank on which the furrow wheel is journaled, andlifting mechanism connecting the inner end of said land wheel spindle tothe frame.

4. In a wheeled plow, a frame comprising laterally spaced bars, the oneon Vthe land side being arched, an axle journaled on said bars andhaving forwardly extending land and furrow wheel cranks at oppositesides of the frame, the land wheel crank being of greater length thanthe furrow wheel crank and offset therefrom, an inwardly extendingspindle on the land wheel crank,

a land wheel journaled on said spindle within the frame, an outwardlyextending spindle on the other crank on which the furrow wheel isjournaled, and lifting mechanism connecting the inner end of said landwheel spindle to the frame.

5. In a wheeled plow, a frame comprising laterally spaced bars one ofwhich is arched, a bearing bracket secured beneath said arched bar, asecond bracket secured above -and offset therefrom an arm fixed to saidcentral portion of the axle, a vertically adjustable rear furrow wheelon the frame, a link connecting theA rear furrow wheel to said arm, andmeans for oscillating said axle to raise and lower the frame.

7. In a wheeled plow, a frame, comprising forward spaced members, anaxle having a central portion journaled on the front of the frame andprovided with forwardly extending land and furrow wheel cranks, the landwheel crank being of greater length than the furrow wheel crank andoffset therey from, horizontally extended ends on said cranks formingspindles, the spindle of the land wheel crank being positioned withinsaid spaced members and the furrow wheel outside thereof, land andfurrow wheels journaled on said spindles, respectively, and means forshifting said cranks to raise and lower the frame.

In testimony whereof I affix my signature.

WILLIAM s. GRAHAM.

